Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

2 posts

Wannabe Geek

#268599 27-Mar-2020 18:10
Send private message quote this post

I currently have 1 TV (Samsung) with built-in Freeview (SAT) with the LNB power set to "ON" and two additional separate Freeview (SAT) receivers with the power set to off.  


All units are connected through a Matchmaster 10MM-DDA24.
No problem as long as I leave the TV (Samsung) is on.


My question is there any way to power the LNB without the TV or the other receivers being set to LND "powered ON". Ideally, I want the LNB powered separately from the TV and the receivers so that I don't need the TV to remain on to be able to watch on any other outlets?

I do not believe that the Matchmaster 10MM-DDA24 can provide LNB power.




Create new topic
1959 posts

Uber Geek

  #2448475 27-Mar-2020 22:20
Send private message quote this post

The Brochure says it powers the LNB.





Features and Benefits


  • 4 Outputs
  • Frequency range 47-2150MHz
  • Electrostatic protection
  • LNB power on (18VDC)
  • Switchable Inputs
  • 4G/5G protection

541 posts

Ultimate Geek

  #2448500 27-Mar-2020 23:38
Send private message quote this post

The problem you have with powering the LNB is that the voltage used to provide the power also selects horizontal or vertical polarity.  Horizontal = 18 volts, vertical = 13 volts.  So it normally needs to be provided by the device that is selecting the polarity, in this case your TV.  With a dish that is just used for Sky and/or Freeview, you only need horizontal polarity, so if the Matchmaster can be made to output 18 volts itself, set it to do that.  Your photo shows that there is an 18 volt input into the Matchmaster, so it may well be able to output 18 volts to the LNB.


2 posts

Wannabe Geek

  #2448685 28-Mar-2020 11:43
Send private message quote this post

Thanks to both B1GGLZ and fe31nz

I measured the voltage for the matchmaster and it was outputting 18V.
I managed to get both the set top boxes going well by turning off the LNB power.

The Samsung TV was the problem. No matter what I did I had to have the LNB turned on for it to work. This is not ideal as it means two different 18V power sources to the LNB.
It turns out that I had to completely factory reset the Samsung TV and repeat the Satellite and Channel scan for it to recognize that the LNB already had power.
The Channel scan was the bit that must have been holding previous LNB ON settings. Frustrating but all good now.
Happy familys😉

Create new topic

Twitter and LinkedIn »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

OPPO Find X2 Lite brings flagship features to mid-range 5G smartphone
Posted 29-May-2020 12:52

Sony introduces the digital camera ZV-1 for content creators
Posted 27-May-2020 12:47

Samsung Announces 2020 QLED TV Range
Posted 20-May-2020 16:29

D-Link A/NZ launches AI-Powered body temperature measuring system
Posted 20-May-2020 16:22

NortonLifeLock Online Banking Protection now available for New Zealand banks
Posted 20-May-2020 16:14

SD Express delivers new gigabyte speeds for SD memory cards
Posted 20-May-2020 15:00

D-Link A/NZ launches Nuclias cloud managed network solution hosted in Australia
Posted 11-May-2020 17:53

Logitech introduces new video streaming solution for home studios
Posted 11-May-2020 17:48

Next generation Volvo cars to be powered by Luminar LiDAR technology
Posted 7-May-2020 13:56

D-Link A/NZ launches Wi-Fi Certified EasyMesh system
Posted 7-May-2020 13:51

Spark teams up with Microsoft to bring Xbox All Access to New Zealand
Posted 7-May-2020 13:01

Microsoft plans to establish its first datacenter region in New Zealand
Posted 6-May-2020 11:35

Genesis School-gen has joined forces with Mind Lab Kids
Posted 1-May-2020 12:53

Malwarebytes expands into privacy with fast, frictionless VPN
Posted 30-Apr-2020 16:06

Kordia to donate TV airtime on Channel 200 to community groups
Posted 30-Apr-2020 16:00

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Support Geekzone »

Our community of supporters help make Geekzone possible. Click the button below to join them.

Support Geezone on PressPatron

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.